<!--
 * @Description: 
 * @Author: 赵华宇
 * @Date: 2025-04-28 20:18:28
 * @LastEditors: 赵华宇
 * @LastEditTime: 2025-04-28 20:26:50
-->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>动画实现步骤</title>
    <style>
        .box{
            width: 200px;
            height: 100px;
            background-color: pink;
            animation:change 1s;
        }
        /* 动画一：宽度从200变化到800
        @keyframes change {
            from{
                width:200px;
            }
            to{
                width: 800px;
            }
        } */
        /* 动画二 从200*100 变化到800*500 */
        @keyframes change {
            0%{
                width: 200px;
                height: 100px;
            }
            20%{
                width: 300px;
                height: 300px;
            }
            100%{
                width: 800px;
                height: 500px;
            }
        }
    </style>
</head>
<body>
    <div class="box"></div>
</body>
</html>